The S2X21 is a red Silicone 70 Shore A O-Ring built to an inside diameter of 21 mm (0.827 in), a cross section of 2 mm (0.079 in), and an outside diameter of 25 mm (0.98 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
It resists extreme heat and cold, ozone and UV exposure, and dry heat. Silicone is valued for physiological inertness and low toxicity, flexibility that holds at very low temperatures. Published continuous service range is -80°F (-62.2°C) to 450°F (232.2°C). It should not be specified for service in abrasive dynamic service or hydrocarbon fuels and oils.
This o-ring meets FDA requirements for food contact. It sees regular use in electronics and electrical enclosures, ovens and heated equipment, and sanitary process lines.
This item is sold individually under part number S2X21. Unit weight is approximately 0.3136 g. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 2MM CS X 21MM ID RED SILICONE 70D
uf_description2 METRIC O-RING
Actual_OD 25 mm (0.98 inch)
Actual_CS 2 mm (0.079 inch)
Actual_ID 21 mm (0.827 inch)
ProductCode Description O-Rings - Metric - Commodity